Yellowstone Park, August 21st, 2021

Fall River in Yellowstone Park. Note the lack of crowds

The park discontinued its hoot owl closure on all streams yesterday. Most streams, other than the Firehole River, have cooled enough that water temperatures are no longer in the lethal range to trout that have been stressed for a variety of reasons. Walk-in locations on northeast corner streams ( Lamar, Slough, Soda Butte) are very crowded. Fall River Basin streams ( Bechler and Fall Rivers, Boundary and Mountain Ash Creeks) in the southwest corner of the park are seeing much fewer visits. Whichever streams you try, terrestrial insect patterns currently rule the roost for finding success.